diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index f9cd18316d16..021daf6528de 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -611,7 +611,8 @@ static struct iova_magazine *iova_magazine_alloc(gfp_t flags)
 
 static void iova_magazine_free(struct iova_magazine *mag)
 {
-	kmem_cache_free(iova_magazine_cache, mag);
+	if (mag)
+		kmem_cache_free(iova_magazine_cache, mag);
 }
 
 static void